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(No Model.) I Y 3 Sheets--S heet 1. J. J. JOHNSTON.

FODDER CUTTER.

No. 273,237. Patented Feb.27, 1883.

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(No Model.) f 3 Sheets-Sheet 2. J. J. JOHNSTON.

FODDER CUTTER. No. 273,237. Patented Feb.27, 1883.

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I FODDER CUTTER. No. 273,237. PatentedPehZY, 1883.

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NITED STATES PATENT OFFICE.

JAMES J. JOHNSTON, OF COLUMBIANA, OHIO, ASSIGNOR TO THE UNITED STATESIMPROVEMENT COMPANY, (LIMITED,) ,OF SAME PLACE.

CUTTER.

SPECIFICATION forming part of Letters Patent No. 273,237, dated February27, 1883.

Application filed February 23, 1882. (No model.)

T 0 all whom it m ay concern;

Be it known that I, JAMES J. JOHNSTON, of Oolumbiana, in the county ofOolumbiana and State of Ohio, haveinvented a certain new andusefulIniprovenientinFodder-MillsfortheOutting and Chopping of Fodderfor Live Stock; and I do hereby declare that the followingis a full,clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

My invention relates to an improvement in mills for the cutting andchopping of cornstalks and other articles for fodder for live stock; andit consists of two hollow cylinders of different diameters, each havingan open end, the greater having cutters projecting inwardly from itsinner wall, and the smaller one having cutters projecting outwardly fromits outer wall and placed within the larger cylinder, said cylindersrevolvingin opposite directions and combined with driving-gear andfeeding mechanism, allof which will hereinafter more fully and at largeappear.

To enable others skilled in the art with which my invention ismostnearly connected to make and use it, I will proceed to describe itsconstruction and operation.

In the accompanying drawings, which form part of this specification,Figure 1 is a top view or plan of my improvement in mills for cuttingand chopping fodder for live stock. Fig. 2 is a side view of the same.Fig. 3 isan end view of the same. Fig. 4 is a diagram of the cylinders,representing their relation to each other. Fig. 5 is a vertical sectionof the largercylinder, representing the smaller one arranged therein.Fig. 6 is a detached view in perspective of one of the cutters.

Reference being had to the accompanying drawings, A represents the frameof the mill, and B a hollow cast-iron cylinder consisting of a flangeddisk, at, and a series of rings, b c d e, the flange of the disk at andthe rings 1) c at having recesses therein for the reception of cutters0, held in the recesses in the flanged disk at by means of the ring I),and in the recesses in the ring D by the ring 0, and in the recesses inring a by the ring at, and in recesses of ring (I by the ring 0. Thering I) is secured to the flanged disk a, and the rings 1) c d eareconsecutively secured to each other by means of screws, as indicated inFigs. 2 and 4. The axle or shaft D of the cylinder B is furnished with awheel, E, and journaled in bearings F.

The small cylinder G is constructed in the same manner as the cylinderB, and the cutters O held similarly therein, with the exception thatthey project outwardly from said cylinder. The axle or shaft I ofcylinder G is journaled in bearings H, and furnished with wheels J K,the beveled wheel J meshinginto a beveled wheel, L, on the axle or shaftI), carrying on its upper end a beveled wheel, 0, which meshes with abeveled wheel, 01, on the axle or shaft of the under feed-roller, e. Thecorrugated feed roller M of the hopper N is journaled inspring-bearingsf, the tension of \vhichis regulated by adjListing-screws g. The

small cylinder G is placed within the cylinder the hopper tothe.interior of the cylinder B is clearly shown in Figs. 1 and 2.

To the frame A, directly under the cylinder B, is arranged a chute, 0,(shown in Figs. 1, 2, and 3,) and is used for the purpose of carryingoff the chopped fodder as it falls from the cylinders B and G. The shaftP is journaled in bearin gs V, and is furnished with Wheels Q R anddriving-pulley S, the wheel R meshing into a wheel, T, on shaft U,journaled in bearings W.

The construction, arrangement, and relation that the several parts bearto each other will be readily understood from the foregoing description,reference being had to the accompan yin g drawings. I will thereforeproceed to describe its operation, which is as follows: The fodder to becut and chopped is placed in the hopper N, andpower applied to thepulley S, which will revolve the shaft 1? and wheels Q R in thedirection indicated by the arrows g, which will revolve the wheels J K,cylinder Gr, wheel T, and shaftU in the direction indicated by thearrows h, and the wheel T will revolve the wheel E and cylinder B in thedirection indicated by the arrows i, and the wheel J will revolve thewheel L and corrugated feed-roller e, and, through the medium of beveledwheels 0 d and the frictional con- B, and its relation and that of thefeed end of tact of the rollers with each other, the roller on will berevolved in the direction indicated by the arrows m. The fodder to becut and chopped is placed in the hopper N and pressed forward until thecorrugated feed-rollers c M commence to draw it forward, forcing it intothe cylinder B, where the first outer series of cutters O G will cut thefodder, which, falling into the cylinder B, will be brought in contactwith the cutters of the cylinders B and G.

By the arrangement of driving-gear hereinbefore described the cylindersB and G are revolved in different directions and at different rates ofspeed, whereby the fodder fed into the interior of the cylinder B by thecorrugated feed-rollers e M is cut and rapidly chopped very fine by thecutters G and U of the cylinders B and G, which cutters, havingtheircutting-edges tra velingtoward each other, will 'cut and chop thefodder with great rapidity without liability of choking or clogging themill, which cut and chopped fodder, accumulating in the center of thecylinder B, is gradually crowded out through its open end and falls fromthe cylinder B onto the chute O, which carries it off from the mill.

Having thus described my invention,what I claim as new, and desire tosecure by Letters Patent, is-

1. In a fodder cutting and chopping mill, two hollow cylinders ofdifferent diameters arranged one within the other, one having cutters onitsinner side wall, and the other having cutters on its outer side wall,said cylinders traveling in opposite directions and at different ratesof speed, in combination with a feeding and driving mechanism,substantially as and for the purpose set forth.

2. In a fodder cutting" and chopping mill, the combination of the hollowcylinders B G, consisting of flanged disks a, rings 1) o d 0, andcuttersO C, said cylinders arranged one within the other and travelingin opposite directions, substantially as herein described.

3. In a fodder cuttingand chopping mill, the combination ofthe hollowcylinders 13 G, armed with cutters G G, and traveling in oppositedirections, hopper N, having corrugated feed rollers c M, and drivingmechanism, substantially as herein described.

JAMES J. JOHNSTON.

\Vitnesses:

T. D. 1). OURAND, FRED G. DIETRICH.

